Basis of Presentation - Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Provision for/(benefit from) income taxes	$ 686	$ (485)	$ 1,193	$ (597)
Income tax expense related to remeasurement of deferred tax assets and liabilities	$ 300